Biden Warns U.S. Citizens To Leave Ukraine, White House Says Russia Could Invade 'Any Time'

The Biden administration believes there is a "distinct possibility" Russia could invade Ukraine before the end of the Winter Olympics on Feb. 20. White House national security adviser Jake Sullivan suggested that the threat is "now immediate enough" to warn Americans still in Ukraine to leave in the next 24 to 48 hours.» Subscribe to NBC News: http://nbcnews.to/SubscribeToNBC » Watch more NBC video: http://bit.ly/MoreNBCNews NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. NBC News Digital features NBCNews.com, MSNBC.com, TODAY.com, Nightly News, Meet the Press, Dateline, and the existing apps and digital extensions of these respective properties. We deliver the best in breaking news, live video coverage, original journalism and segments from your favorite NBC News Shows. Connect with NBC News Online! NBC News App: https://smart.link/5d0cd9df61b80 Breaking News Alerts: https://link.nbcnews.com/join/5cj/bre... Visit NBCNews.Com: http://nbcnews.to/ReadNBC Find NBC News on Facebook: http://nbcnews.to/LikeNBC Follow NBC News on Twitter: http://nbcnews.to/FollowNBC' #Biden #USA #Ukraine #Russia Biden Warns U.S. Citizens To Leave Ukraine, White House Says Russia Could Invade 'Any Time'